function show_stat(deliverer)
	{
	var x=(screen.width-500)/2;
	var y=(screen.height-500)/2;
	var path="/statistic/?deliverer="+deliverer;
	var win_name="statistic_"+deliverer;
	statistic_window=window.open(path, win_name, "width=500, height=500, left="+x+", top="+y+", menubar=0, toolbar=0, location=0, directory=0,scrollbars=0, status=0, resizable=0");
	}